Closure fasteners – Bolts – Double acting
Patent
1977-07-27
1979-02-06
Frazier, Roy D.
Closure fasteners
Bolts
Double acting
29234112, 29234115, 292DIG38, E05C 1906, E05C 1902
Patent
active
041381513
ABSTRACT:
A device for locking the lid of a cassette tape receiving compartment of a cassette tape recorder including a lock member projecting from a portion of the lid and a generally U-shaped lock spring provided at one end of one leg thereof with a first projection engaging the lock member of the lid during opening and closing thereof. A second projection on the one leg of the lock spring engages against a ledge formed in the recorder casing in order to modify the spring force applied by the lock spring against the lid.
REFERENCES:
patent: 1068899 (1913-07-01), Hepburn
patent: 1479398 (1924-01-01), Ollard
patent: 1581693 (1926-04-01), Seeholzer
patent: 1896363 (1933-02-01), Johnson
patent: 3038747 (1962-06-01), Rapata
patent: 3151899 (1964-10-01), Kelley
patent: 3797870 (1974-03-01), Beckman
Frazier Roy D.
Lyddane William E.
Olympus Optical Company Limited
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